I’ve had some interest in going back and looking at the Sony/Zeiss 55mm f/1.8 Sonnar (from now on called the Zony 55) on the Sony a7R. I am happy to oblige. I’ve changed the test regime a tiny bit. Rather than use a variable neutral density filter to adjust the light levels at the sensor… [Read More]
Archives for 2014
Ameliorating Sony a7R shutter shock
Joe Holmes just posted a good article on how to deal with the Sony alpha 7R shutter vibrations. Joe has gone to a lot of trouble and applied some really inventive thinking to come up with his fixes. His glass is fuller than mine in that he sees acceptable results as reachable over a broader… [Read More]
More testing of the Sony a7R with the ISO 12233 target
This is a continuation of applying the new shutter shock testing regimen first proposed and used in the last post this time to the Sony a7R and another 135mm lens. The reason there was no post yesterday was that I made some error – I’m still not sure what – that made some of the… [Read More]
Testing the D800E with the ISO 12233 target
A couple of months ago, before I got started on the Sony a7R Odyssey, I was looking for a way to compare a photograph of the ISO 12233 target made with electronic flash to one made with a continuous light source. The idea was to use the electronic flash to find out what the target… [Read More]
Comparing Nikon D800E and Sony a7R shutter shock
In order to compare the a7R and the D800E’s sensor-level shutter release blur, I combined some of raw images from the last three posts into two images that show both camera’s performance with the same vertical and horizontal scales. To review, the two setups were: Zeiss 135mm f/2 APO Sonnar ZF.2 on a Nikon D800E,… [Read More]
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